Anti-vandal door lock apparatus
US6868704B2 · kind B2 · utility
4Cited by
45References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Jan 23, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/8568
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An anti-vandal door lock apparatus in which a cylinder lock such as a mortise lock cylinder is employed for unlatching a cylindrical lock assembly. In a preferred embodiment, the mortise lock cylinder is mounted to the outside of a door trim such as a pull plate, with the cylindrical lock mounted to the inside of the trim, and the pull plate is mounted to the door, in such manner as to effect an anti-vandal door lock assembly. Preferred embodiments may include a hold-back feature, as well as a feature for facilitating secured removal of the mortise lock cylinder as for re-keying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.